From core data I generate data for map marker pins. When user selects a marker pin I display the data in a popup label with multiple rows, when I click on the pin. This is working for one marker pin. Now, I need to iterate over a list and generate several of those markers each with unique popup label data. The code: struct MapView: UIViewRepresentable { var annotationOnTap: (_ title: String) -> Void @Binding var pins: [GpsData.MyEndPt] let key: String private static var mapViewStore = [String : MKMapView]() func makeUIView(context: Context) -> MKMapView { if let mapView = MapView.mapViewStore[key] { mapView.delegate = context.coordinator return mapView } let mapView = MKMapView(frame: .zero) mapView.delegate = context.coordinator MapView.mapViewStore[key] = mapView return mapView } func updateUIView(_ uiView: MKMapView, context: Context) { uiView.addAnnotations(pins) } func makeCoordinator() -> MapCoordinator { MapCoordinator(self) } final class MapCoordinator: NSObject, MKMapViewDelegate { var parent: MapView init(_ parent: MapView) { self.parent = parent } func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? { let PINID:String = "MyEndPoint" var mPin: MKMarkerAnnotationView? = nil let subtitleView = UILabel() subtitleView.font = subtitleView.font.withSize(12) subtitleView.numberOfLines = 0 if (mPin == nil ) { mPin = MKMarkerAnnotationView(annotation: annotation, reuseIdentifier: PINID) mPin?.canShowCallout = true } else{ mPin?.annotation = annotation } mPin?.leftCalloutAccessoryView = nil let btn = UIButton(type: .detailDisclosure) mPin?.rightCalloutAccessoryView = btn let zip:String = "77065" let formattedSalesStr:String = "100" let totalTargetText:String = "500" let paddedLoad = formattedSalesStr.padding(toLength: 50, withPad: " ", startingAt: 0) let paddedCapacity = totalTargetText.padding(toLength: 50, withPad: " ", startingAt: 0) subtitleView.text = "Total sales: " subtitleView.text! += paddedLoad subtitleView.text! += " \r\n" subtitleView.text! += "Total Target: " subtitleView.text! += paddedCapacity subtitleView.text! += " \r\n" subtitleView.text! += paddedzip mPin!.detailCalloutAccessoryView = subtitleView return mPin! } } } As you can see in the above method I have hardcoded values for my popup marker label. So I tried to iterate over the @Binding pins, populate each mPin, and return an array of MKAnnotationView, like this: func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> [MKAnnotationView] { let PINID:String = "MyEndPoint" var i:Int = 1 var mPins = [MKAnnotationView]() for detail in self.parent.pins { var mPin: MKMarkerAnnotationView? = nil let subtitleView = UILabel() subtitleView.font = subtitleView.font.withSize(12) subtitleView.numberOfLines = 0 if (mPin == nil ) { mPin = MKMarkerAnnotationView(annotation: annotation, reuseIdentifier: PINID) mPin?.canShowCallout = true } else{ mPin?.annotation = annotation } mPin?.leftCalloutAccessoryView = nil let btn = UIButton(type: .detailDisclosure) mPin?.rightCalloutAccessoryView = btn subtitleView.text! += String(i) subtitleView.text = "Total Load: " subtitleView.text! += String(detail.sales) subtitleView.text! += " \r\n" subtitleView.text! += "Total Target: " subtitleView.text! += String(detail.target) subtitleView.text! += " \r\n" i += 1 // } mPin!.detailCalloutAccessoryView = subtitleView mPins.append(mPin!) } return mPins } The marker pins show up, but then the label does not popup. How to fix this?

I have a LookAroundPrewiew in a frame which itself is already small. On top of that is the LookAroundPreview automatically appended onto the preview. In fact it doesn’t really bother me per se, but it’s that my view doesn’t have much space. So is it possible customize the view by removing the text ? And the Apple Maps text at the bottom of the image which is fairly small isn’t a problem for me.

how to add an offline map (longitude and latitude) please help

Hello, I'm working on a SwiftUI/MapKit project. It uses a custom annotation to mark zip codes on the map. I have an onTapGesture configured to run a custom function when the user clicks on the RoundedRectangle content included in the Annotation. I'm using the .annotationTitles(.hidden) modifier on the Annotation so that the title is not shown below my custom annotation. However, when I click below my annotation (where the hidden title text would be) the normal MapKit selection behavior executes. My project has Markers on the map in which I do want this behavior. It pulls up a half sheet detail view for the Marker. It does not make sense for this half sheet detail view to be displayed when tapping on a zip code. I tried using a ZStack with a transparent rectangle offset to drop below my annotation (yellow in screenshot), and included the same onTapGesture with custom function for this. My hope was that the transparent (yellow) RoundedRectangle would override the behavior of clicking on the hidden title. This didn't work. Any ideas? Thanks for your help!

I understand that MapKit automatically sizes the font based on the system Dynamic Type size. The thing is, the default font size is plenty legible for me system wide except for some type in MapKit, while other type in MapKit is already plenty big. For instance, the stream names are much harder to read than they should be by default. And if I increase the system Dynamic Type size, then it makes some MapKit text much larger than needed, while the stream text can still be hard to read. So is there anyway to override or adjust font sizes in MapKit? I'd like to be able to apply percentages to Dynamic Type suggestions. Like for streams, I'd like to scale it somewhere between 133% and 150%. The smallest Dynamic Type is size is .caption2 at 11 points with default settings. With default Dynamic Type settings, it looks like MapKit is drawing stream text around 7 points.

I am making an app like Taxi Driving, where users can add location and driver to that location. The problems I am facing are below: Drawing a route on MKMap - I get the route polyline and I render that on the map. Now what should happen as I am driving, the drove part of the polyline should get removed or may be turned grey, non-drove part should be blue. Currently, I am only able to do this by again getting a route from my current location and re-drawing on the map which is not a good thing I suppose. Show driving instructions - I need to show step-by-step instructions which I get in the MKStep under the MKRoute object. But I don't get the icons that I can show such as Turn Right or Turn left the only thing I have is plain text. I need an icon along with it and also how to identify once I have crossed the step and show the next step as my next instruction. These two are the major problems I am facing and I need to do this with Apple native map view itself so no third-party integration I want.

I'm developing a map-based app for visionOS. The loads map data from a server, using JSON. It works just fine, but I noticed the following effect: If I move the app's window around, it freezes; either on the first movement, or on one of the subsequent ones. The map cannot be panned anymore, and all other UI elements lose their interactivity as well. I noticed this issue before, when I was opening the map on app startup (and here it even happened without moving the window). Since I added a short delay, this was resolved. There was no log message in this case. However, when I noticed that it also happens if I move the window around, I saw that Xcode logs an error: +[UIView setAnimationsEnabled:] being called from a background thread. Performing any operation from a background thread on UIView or a subclass is not supported and may result in unexpected and insidious behavior. trace=( 0 UIKitCore 0x0000000185824a24 __42+[UIView(Animation) setAnimationsEnabled:]_block_invoke + 112 1 libdispatch.dylib 0x0000000102a327e4 _dispatch_client_callout + 16 2 libdispatch.dylib 0x0000000102a34284 _dispatch_once_callout + 84 3 UIKitCore 0x0000000185824ad8 +[UIView(Animation) performWithoutAnimation:] + 56 4 SwiftUI 0x00000001c68cf1e0 OUTLINED_FUNCTION_136 + 10376 5 SwiftUI 0x00000001c782bebc OUTLINED_FUNCTION_12 + 22864 6 SwiftUI 0x00000001c78285e8 OUTLINED_FUNCTION_12 + 8316 7 SwiftUI 0x00000001c787c288 OUTLINED_FUNCTION_20 + 39264 8 SwiftUI 0x00000001c787c2cc OUTLINED_FUNCTION_20 + 39332 9 UIKitCore 0x000000018582fc24 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 1496 10 QuartzCore 0x000000018a05cf00 _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 440 11 QuartzCore 0x000000018a068ad0 _ZN2CA5Layer28layout_and_display_if_neededEPNS_11TransactionE + 124 12 QuartzCore 0x0000000189f80498 _ZN2CA7Context18commit_transactionEPNS_11TransactionEdPd + 460 13 QuartzCore 0x0000000189fb00b0 _ZN2CA11Transaction6commitEv + 652 14 VectorKit 0x00000001938ee620 _ZN2md12HoverSupport18updateHoverProxiesERKNSt3__16vectorINS1_10shared_ptrINS_5LabelEEEN3geo12StdAllocatorIS5_N3mdm9AllocatorEEEEE + 2468 15 VectorKit 0x0000000193afd1cc _ZN2md15StandardLabeler16layoutForDisplayERKNS_13LayoutContextE + 156 16 VectorKit 0x0000000193cf133c _ZN2md16CompositeLabeler16layoutForDisplayERKNS_13LayoutContextE + 52 17 VectorKit 0x0000000193abf318 _ZN2md12LabelManager6layoutERKNS_13LayoutContextEPKNS_20CartographicRendererERKNSt3__113unordered_setINS7_10shared_ptrINS_12LabelMapTileEEENS7_4hashISB_EENS7_8equal_toISB_EEN3geo12StdAllocatorISB_N3mdm9AllocatorEEEEERNS_8PassListE + 2904 18 VectorKit 0x0000000193cad464 _ZN2md9realistic16LabelRenderLayer6layoutERKNS_13LayoutContextE + 464 19 VectorKit 0x0000000193658b54 _ZNSt3__110__function6__funcIZN2md9realistic20RealisticRenderLayer5frameERNS2_13LayoutContextEE3$_0NS_9allocatorIS7_EEFvvEEclEv + 180 20 VectorKit 0x00000001936584cc ___ZN3geo9TaskQueue14queueAsyncTaskENSt3__110shared_ptrINS_4TaskEEEPU28objcproto17OS_dispatch_group8NSObject_block_invoke + 80 21 libdispatch.dylib 0x0000000102a30f98 _dispatch_call_block_and_release + 24 22 libdispatch.dylib 0x0000000102a327e4 _dispatch_client_callout + 16 23 libdispatch.dylib 0x0000000102a3aa80 _dispatch_lane_serial_drain + 916 24 libdispatch.dylib 0x0000000102a3b7c4 _dispatch_lane_invoke + 420 25 libdispatch.dylib 0x0000000102a3c794 _dispatch_workloop_invoke + 864 26 libdispatch.dylib 0x0000000102a481a0 _dispatch_root_queue_drain_deferred_wlh + 324 27 libdispatch.dylib 0x0000000102a475fc _dispatch_workloop_worker_thread + 488 28 libsystem_pthread.dylib 0x0000000103b0f924 _pthread_wqthread + 284 29 libsystem_pthread.dylib 0x0000000103b0e6e4 start_wqthread + 8 I disabled all my withAnimation() statements, and the problem persists. I also thought it might be related to my own network fetches, but I think all apply their changes on the main thread. And when I turn on network logging for my own fetching logic, I do not see any data coming in. I also do not think there should be a reason for it. How can I debug such a situation, so I know, which call actually threw this message? I'd like to know if it is my code or a bug in the SwiftUI map itself.

Hi, I am learning about MapKit for SwiftUI, at first I created the MKMapItem @State private var mapSelection: MKMapItem? @State var starbucksReserve = MKMapItem(placemark: .init(coordinate: CLLocationCoordinate2D(latitude: 41.894178596474575, longitude: -87.62451598445733)))` I put that in the Map Map(position: $cameraPosition,selection: $mapSelection){ Marker("Starbucks Reserve", systemImage: "cup.and.saucer.fill" ,coordinate: starbucksReserve.placemark.coordinate) } Even though I have put the selection $mapSelection, my Marker is not selectable. I am not sure why. I tried to fix it by changing mapSelection to Int? and made a tag for Marker, but because I am learning how to use it so I want to make sure why marker cannot be selectable with the first approach? Thank you

**Hi, hopefully you can help me with this swiftUI code? I have created a Map App which will show a route via a ManPolyLine (see the code). Whilst I can print the route via the (in the code below) var _ = print("ROUTE = (route.steps.map { $0.instructions }.filter { !$0.isEmpty })") I CANNOT create a variable for the route it prints? I need to do this so I can create a .sheet (which is shown), but cannot Access a Variable to List the route details! Help would be most appreciated, TIA (The pertinent part of the code below)** =========================================== @State private var route: MKRoute? @State private var myRoute: [String] = [] @State private var selectedResult: MKMapItem? @State private var position: MapCameraPosition = .automatic Map(position: $position, selection: $selectedResult) { ForEach(searchResults, id: \.self) { result in Marker(item: result) } .annotationTitles(.hidden) UserAnnotation() if let route { MapPolyline(route) .stroke(.blue, lineWidth: 5) var myRoute = route.steps.map { $0.instructions }.filter { !$0.isEmpty } var _ = print("ROUTE = \(route.steps.map { $0.instructions }.filter { !$0.isEmpty })") var _ = print("COUNT = \(myRoute.count)") } } ===========================================

I am working on an application with a map. I have some data(addresses and specific locations) that I want the map to have a pin on. Is there a way to add my data into the map and how can I go about doing that?

This post states that attribution is required for MapKit or violates the developer agreement. Can I provide my own attribution if I am displaying my original map content? It seems bizarre to attribute map sources that are not used.

Hello, I have successfully used the getCoordinates() function provided by Apple Documentation to convert an address to coordinates. I created my own struct for a Pin that includes name, latitude, and longitude as properties. I am able to add Markers to my map using these three properties. My problem is that I'd like to use these Markers to pull up further information, such as lookaround views. To use these API call functions, I need to provide an MKMapItem as an argument to the mapItem parameter. MKLookAroundSceneRequest(mapItem: MKMapItem) I'm having trouble using the MKMapItem documentation to understand how to make my own MKMapItems. If I try using the autocomplete in XCode, I can get this: MKMapItem(placemark: MKPlacemark(coordinate: CLLocationCoordinate2D(latitude: latitude, longitude: longitude))) Is it possible to add a name when instantiating a new MKMapItem? From the documentation, it seems like name is a property of MKPlacemark, but I can't get this to work. Should I alter the getCoordinates() function to return the entire placemark instead of just the coordinates? Any guidance would be much appreciated! Thanks!

I need multiple MKTileOverlays with multiple blendModes. Apparently using an overlay with a different blend causes the layer under to use the same blend mode. For the example below, using a normal blend mode on top of a soft light blend mode causes a normal blend mode to be used instead of soft light. The soft light layer is rendered as expected until the normal layer is displayed starting at zoom level 15. First, I've subclassed MKTileOverlay to add an overlay type so that the correct renderer is provided per overlay. (I know there is a title, but I prefer this) enum OverlayType { case softLight, normal } class TileOverlay: MKTileOverlay { var type: OverlayType = .normal } Then setup layers and renderers in the typical fashion: var softLightRenderer: MKTileOverlayRenderer! var normalRenderer: MKTileOverlayRenderer! private func setupSoftlightRenderer() { let overlay = TileOverlay(urlTemplate: "http://localhost/softlight/{z}/{x}/{y}") overlay.type = .softLight overlay.canReplaceMapContent = false overlay.minimumZ = 9 overlay.maximumZ = 20 mapView.addOverlay(overlay, level: .aboveLabels) softLightRenderer = MKTileOverlayRenderer(tileOverlay: overlay) tileRenderer.blendMode = .softLight } private func setupNormalRenderer() { let overlay = TileOverlay(urlTemplate: "http://localhost/normal/{z}/{x}/{y}") overlay.type = .normal overlay.canReplaceMapContent = false overlay.minimumZ = 15 overlay.maximumZ = 20 mapView.addOverlay(overlay, level: .aboveLabels) normalRenderer = MKTileOverlayRenderer(tileOverlay: overlay) normalRenderer.blendMode = .normal } func mapView(_ mapView: MKMapView, rendererFor overlay: MKOverlay) -> MKOverlayRenderer { if let overlay = overlay as? TileOverlay { switch overlay.type { case .softLight: return softLightRenderer case .normal: return normalRenderer } } print("Warning: using unhandled overlay renderer") return blankRenderer } override func viewDidLoad() { ... setupSoftlightRenderer() setupNormalRenderer() } Interestingly, if I put the overlays at two different levels, one .aboveLabels and another .aboveRoads it works as expected. The problem is that limits me to two different overlay blend modes. I really could use more than two. I tried every possible variation of inserting the layers at different indexes and methods, but the only two that seem to work are the .aboveLabels and .aboveRoads. How can I use more than two different blend modes?

To restrict outgoing connections, I've ensured that the following key in not present in the entitlement file: <key>com.apple.security.network.client</key> <true/> The api calls made using URLSession and WKWebView are restricted as expected, but the same is not the case with MKMapView. The map content and the directions api are able to make outgoing network calls. Please let me know if it's possible to reliably restrict outgoing network connections in a sandboxed app?

Hello , I am working on developing an app that shows users details of a location like opening hours, directions, ratings if available sort of like apple maps does but in a different UI and for different reasons. How do i tap into that information in SwiftUI mapkit? See image below for information window you get when you tap an annotation/marker in apple maps:

I figured out how to use a Mapkit offline in swift and make the map usable offline . Would a project with a Mapkit still be accepted in the contest? Another question! Are essays required this year? I don't see it in the requirements.

I am working on a virtual simulator for iOS 17 from my macbook. I want to have the initial view present the Map but zoomed out enough so that it's basically showing the whole world - in a 3d render. My understanding is that as of iOS17 if you have .standard for the MKMapView type, it should still render as 3D if the altitude is high enough. But on my simulator, I literally cannot zoom out any further. Is the right protocol to update the mapType to be .hybridFlyover? That seems different than the .standard (which I think is what I actually want). Does anyone have any idea / is there anything sticking out in this code? Here is my code: struct GlobeView: UIViewRepresentable { var coordinates: [IdentifiableCoordinate] func makeUIView(context: Context) -> MKMapView { let mapView = MKMapView() mapView.mapType = .hybridFlyover mapView.delegate = context.coordinator let camera = MKMapCamera(lookingAtCenter: CLLocationCoordinate2D(latitude: 0, longitude: 0), fromDistance: 1_000_000_000, pitch: 0, heading: 0) mapView.setCamera(camera, animated: true) return mapView } func updateUIView(_ uiView: MKMapView, context: Context) { let annotations = coordinates.map { coordinate -> MKPointAnnotation in let annotation = MKPointAnnotation() annotation.coordinate = coordinate.coordinate return annotation } uiView.addAnnotations(annotations) } class Coordinator: NSObject, MKMapViewDelegate { var parent: GlobeView init(_ parent: GlobeView) { self.parent = parent } } func makeCoordinator() -> Coordinator { Coordinator(self) } }

I've never used Swift or SwiftUI before, so I went to the apple SwiftUI tutorials page to attempt to learn the language. In the SwiftUI tutorial: Creating and Combining Views, section 5, step 4 it asks me to insert the line Map(initialPosition: .region(region) in the following code block import SwiftUI import MapKit struct MapView: View { var body: some View { /** this line */ Map(initialPosition: .region(region)) } private var region: MKCoordinateRegion { MKCoordinateRegion( center: CLLocationCoordinate2D(latitude: 34.011_286, longitude: -116.166_868), span: MKCoordinateSpan(latitudeDelta: 0.2, longitudeDelta: 0.2) ) } } This code block is directly from the tutorial, however, I get an error stating Cannot infer contextual base in reference to member 'region'. From my own research, there exists a function in MapKit called region which converts from MKCoordinateRegion to MapCameraRegion, which seems to be the desired functionality as according to the documentation here initialPosition is supposed to be of type MapCameraRegion. However, it seems I must be calling this function incorrectly. I thought a logical next step would be to insert the line Map(initialPosition: MapKit.region(region)) as that's how many other languages I've worked with operate but that gives the error Module 'MapKit' has no member named 'region'. I also changed the name of my private var region so the function and the variable wouldn't have the same name and that also had no affect. Any ideas? Thanks in advance.

How would one update the position of a SwiftUI Map without impacting the zoom (or distance from a MapCamera point of view). So want: a) map position being updated by incoming GPS co-ordinates b) user may then on the Map zoom in/out c) on subsequent GPS position changes I want to to keep the zoom/distance changes from the User and not reset these From the code below the the issue seems to be when getting the current "distance" (i.e. mapCamPost.camera?distance) that this value seems to go to "nil" after the User zooms in the map. struct GCMap: View { @StateObject var locationMgr = GcFlightState() @State private var mapCamPos: MapCameraPosition = .automatic var body: some View { ZStack { Map(position: $mapCamPos) { Annotation("UserLocation", coordinate: self.locationMgr.location.coordinate) { Image(systemName: "airplane.circle").rotationEffect(.degrees(270)) } } .onMapCameraChange() { print("onMapCameraChange \(mapCamPos.camera?.distance)") } .onReceive(locationMgr.$location) { location in mapCamPos = .camera(MapCamera( centerCoordinate: location.coordinate, distance: mapCamPos.camera?.distance ?? 1000, // <<=== heading: location.course )) } } } }

If have a custom type (hashable) for map selection: @State var mapSelection: CustomType Map(selection: $mapSelection ) { ... } However, if I want to selet MapFeature, I need to use MapFeature type for the state variable @State var mapSelection: MapFeature But I want to display some Markers by using my CustomType. MapFeature can't be initialized so that I can't map my CustomType to MapFeature to display my Markers. Is there a way to select MapFeature by custom type?